Red Clover [Trifolium pratense (L.)] widely distributes in Europe, the British Isles, China and many other countries. It is one of the world?s oldest agricultural crops, widely cultivated as a fodder crop and as a source of hay for cattle horses and sheep. It has long been used in Western herbal traditions as a "blood purifier". Generally placing a heaping tablespoon of the dried flowering top in a cup of water makes a tea, the tea of the dried flowers is a folk remedy to relieve spasms associated with asthma and bronchitis, and is a famous folk cancer remedy.
Red clover is now popular in dietary supplement products. No clinical studies back its use as a folk cancer remedy. However, red clover is considered a good candidate for further research in the new field of chemoprevention- compounds or foods that may help prevent the development of cancers. Standardized red clover supplements are now being marketed as postmenopausal supplements.